Respuesta :
Impost: Is a projecting block resting on top of a column or embedded into a wall.
Keystone: Wedge shaped stone, generally round one at the apex of a vault.
Voussoirs: One of the wedge-shaped pieces forming a arch or vault.
An arch is generally defined as the symmetrical structure that helpful to support a weight of roof and bridge. The oldest known type of arc is the Corbel arch.
What is the term impost, keystone and voussoirs about?
Impost:- Impost is refers to as a projecting block resting on top of a column or embedded into a wall.
Keystone:- keystone is considered as a wedge shaped stone and its final piece placed at the time of construction.
Voussoirs:- Voussoirs is a wedge-shaped pieces that is helpful for forming a arch or vault.
Learn more about arch, refer to the link:
https://brainly.com/question/1285489
